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ugbasic:user:kw:casting_operator
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ugBASIC User Manual

casting operator ✓

SYNTAX

   ... = ( type ) #value
   ... = ( type ) (expression)

PURPOSE

ugBASIC is a loosely typed language. However, there are occasions when the use of certain types is not permitted without the explicit consent of the programmer. For this purpose, a “type casting” mechanism has been integrated very similar to that available in other programming languages, such as C.

In a nutshell, it is possible to add an expression in brackets as a prefix an expression (enclosed by brackets) or an integer, which represents the type conversion you want to make. Conversion from one type to another always generates a temporary variable, which is why it is not possible to change the original value directly. This mechanism, therefore, has the sole purpose of ensuring that conversions always take place correctly.

EXAMPLE

  y = (POSITION) 42
  x = 42: y = (POSITION) ( x )

See also the following example files:

AVAILABLE ON

  • Atari (400/800)
  • Atari XL/XE
  • Commodore 128 (MOS 8502)
  • Commodore 128 (Zilog Z80)
  • Commodore 64
  • TRS-80 Color Computer
  • TRS-80 Color Computer 3
  • ColecoVision
  • Amstrad CPC 664
  • Dragon 32
  • Dragon 64
  • Thomson MO5
  • Thomson MO5
  • Olivetti Prodest PC128
  • Commodore PLUS/4
  • SEGA SC-3000
  • SEGA SG-1000
  • VG-5000
  • Commodore VIC-20
  • ZX Spectrum 48

ANY PROBLEM?

If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you!

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